Window



E. P. CARL WINDOW Jan. 30, 1934.

Filed Aug. 3, 1931 Patented Jan. 39, 1 934 UNITE srr" orgies 6 Claims.

This invention relates to improvements in windows of the combined sliding and swinging type such as shown in my application for windows, filed November 7, 1930, Serial No. 494,065. In

windows of this type it has been found desirable to provide means for counter-balancing or yieldingly supporting the lower sashes so that relatively large sashes may be easily handled and to prevent undue jar or strain on the sash and supporting members when the sash is swung down. Such counter-balancing, which forms one of the principal features of this invention, also serves to hold the sash in adjusted position to provide for ventilation.

Among the ob'ects of this invention are to provide an improved window having a sliding and swinging sash with means ior counter-balancing the same throughout its range of movement; to provide a novel counter-balance for a swinging window; to provide a sliding and swinging window with a plurality of counter-balancing means adapted to coact to balance the window when in vertical position and when swung out of vertical position; to provide a window of the character indicated with double spring balances which are adapted to coact to control the window; and to provide such other novel features of construction and advantages in operation as will appear from the following description.

In the accompanying drawing illustrating this invention:

Figure l is a vertical sectional view showing the lower sash swung to open position;

Figure 2 is an enlarged sectional view taken on the line 2-2 of Figure 1;

Figure 3 is a perspective detail of a portion of the counter-balance mechanism; and

Figure 4 is a side view of the double spring counterbalances.

The window casement or frame 20 has sides or stiles 21, trim 22 and stool or sill 23. The upper sash 25 slides in the frame and is pivoted to swing inwardly, as shown in my prior application.

The lower sash 24 is provided with spring counter-balances 26 having the usual metal bands or flexible members 27. The lower ends of these bands are secured to supports or bearings 28 which run in channels or guideways 29 in the sides 21. The bearings 28 are pivotally connected with the lower portions of the sash 24 so that the sash may swing on the same. Stop members such as shown at 35 may be provided for holding the lower portions of the sashes while it is being swung inwardly. The lower sash is held in its 5 vertical movement by stop rails or strips 37 having sections 38 which are hinged at 39 to the frame and arranged to swing inwardly in order to permit the sash to swing.

The counter-balance system for the lower sash comprises rails or guide strips 80 which are approximately T-shaped in cross section and which are held in position by screws 81. Carriages or slides 82 engage with the rails 80 and are formed to embrace the head or flange portion of the same as shown particularly in Figure 3. carriage may for convenience be made in two pieces 83 and 84, as shown. Links 85 are pivoted to the upper portions 83 and are pivoted at 86 to the sides of the sash 24. The lower carriages 84 have projections 87 provided with hooks88 for receiving eyes or loops 89 on the lower ends of weight or counter-balance ribbons 96, which in the present instance coact with spring .balances 91. I

The balances 26 and 91 may each be provided with separate boxes or casings and set into the frame in the usual manner but I prefer to mount each pair of these on either side of the frame in a single box as shown at 92. The upperbalance is preferably offset a sufficient amount so that the ribbons or bands 27 and 99 will have a slight clearance.

When the lower sash is to be swung inwardly, the stop sections 38 are swung out of the way and the top of the sash is drawn inwardly, at which time the pivoted portion is held against upward movement. As the sash is swung in, its movement is resisted by the pull of the links or arms on the balance strips 90, or in other words, the swinging movement is counter-balanced by the spring balance members 91 with the parts connecting the same with the sash. This movement is stopped and the sash held up or in adjusted position by stops 93 on the rails which are engaged by the carriages 84. As the sash is again swung outwardly, the slides or carriages 82 move up along the guide rails 80 under the influence of the spring balances 91 and assist in swinging the window to normal position. On account of this balance arrangement the lower sash may be held in any adjusted position with its lower rail closely against the stool 23, which provides for ventilation and at the same time tends to keep rain from driving under the sash.

It will be noted that as soon as the sash is swung back into its vertical guideways and the stop members 38 are closed, the pivot portions with the bearings 28 are free to move upwardly so that the sash will then be counter-balanced, 110

This guide or.

by the two pairs of spring balances 26 and the two pairs of spring balances 91. All coact with the sash during its vertical or sliding movement. For this reason spring balances are selected which are of suitable size or strength to properly balance the window during both its vertical movement and its swinging movement. In this connection it will be noted that the spring balances are indicative of suitable balancing devices as other balances of well known form might be used in this connection.

When the lower sash has been swung inwardly, the upper sash may also be moved down and swung in as indicated by dotted lines, but ordinarily this sash will not require the additional counter-balance for such swinging movement and therefore I have not shown the same.

From this description it will be seen that I provide means for readily controlling window sashes, even of considerable size, so that they may be manipulated with but little effort and may be swung to suitable position for cleaning as well as for ventilation. It will however, be

, noted that changes may be necessary in the details of construction in order to adapt my counter-balance to different windows and therefore I do not wish to be limited to the particular arrangement shown and described except as specified in the following claims, in which I claim:

1. A sliding and swinging window having means for counter-balancing the same for the sliding movement and auxiliary coacting means for counter-balancing the same for the swinging movement.

2. In a window construction, the combination with a sliding and swinging window sash, of coacting counter-balance mechanisms, one serving to act during the vertical movement of the 40"" sash only and the other serving to act during the swinging movement of the same.

3."In a window construction, the combination of a frame, a sash slidably mounted in the frame, counter-balances having flexible members pivotally connected with the lower corners of the sash, means for preventing the upward movement of the sash when it is swung on said pivots, rails secured to the frame, slides mounted on the rails, links connecting the slides with the sash, and auxiliary counter-balances coacting with the slides.

4. A window having a vertically slidable sash, means for balancing the sash, pivotal connections between the lower portions of the sash and the balancing means, adjustable-guides for guiding the sash in its vertical movement, catches preventing the upward movement of the sash which are normally inoperative but which become operative when such guides are adjusted out of operative position and auxiliary means for balancing the sash when it is swung out of vertical position.

5. A window structure including a frame, guideways in the sides of said frame, bearings slidably mounted in said guideways, a sash pivotally supported on said bearings and adapted to swing in the frame, and also to slide therein, stop members for holding the lower portion of the sash when it is being swung inwardly, counter-balances connected with said bearings, guide strips secured to the frame adjacent to said guideways, slides engaging with said strips, links connecting said slides and the sides of the sash and counter-balances coacting with said slides.

6. A window structure including a frame, guideways in the sides of said frame, bearings slidably mounted in said guideways, a sash pivotally supported on said bearings and adapted ids to swing in the frame, and also to slide therein,

stop members for holding the lower portion of the sash when it is being swung inwardly, counter-balances connected with said bearings, guide strips secured to the frame adjacent to said guideways, slides engaging with said strips, links connecting said slides and the sides of the sash, and stops for limiting the downward movement of said slides.

ELIZABETH P. CARL. 

